This shape is made using three semicircles. The smaller semicircles have diameters of 10 cm.
10 cm
Calculate the shaded area.
Take it to be 3.142 and write down all the digits given by your calculator.

please help asap ;(​

Ily begins solving the equation 4(x – 1) – x = 3(x + 5) – 11. her work is shown below. 4(x – 1) – x = 3(x + 5) – 11 4x – 4 – x = 3x + 15 – 11 3x – 4 = 3x + 4 how can her partial solution be interpreted?

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

Sarah took the advertising department from her company on a round trip to meet with a potential client. including sarah a total of 11 people took the trip. she was able to purchase coach tickets for $280 and first class tickets for $1280. she used her total budget for airfare for the trip, which was $6080. how many first class tickets did she buy? how many coach tickets did she buy?